Non-gaming power consumption of the Suprim X tracks the Founders Edition very closely. Some differences are to be expected due to the RGB lighting and VRM changes. With Radeon RX 6800, AMD improved greatly in multi-monitor power consumption, but is much worse in media playback.
Gaming power consumption is a good deal increased over the Founders Edition, which has MSI achieve the higher clocks out of the box. They also raised the power limit significantly, which allows NVIDIA's Boost algorithm to boost higher for longer. Still, an increase from 365 W to 436 W is quite large. Even when taking the performance gains into account, it means a loss in energy efficiency of around 20%.
Furmark maximum power almost hits over 500 W. That said, with the card's 3x 8-pin power inputs, this won't be a problem.
Recommended PSU: 800 W